Date: Thu, 13 Feb 2020 13:27:17 -0800 From: Chris <bsd-lists@BSDforge.com> To: <freebsd-current@freebsd.org> Subject: Re: Which AMD CPUs are supported -- temperature Message-ID: <ff7b71302eb9f61fb6de5c087c9c0d85@udns.ultimatedns.net> In-Reply-To: <048f31ec-e025-e668-d941-77d5a6c9ca96@sentex.net>
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On Thu, 13 Feb 2020 11:35:18 -0500 mike tancsa mike@sentex=2Enet said > On 2/13/2020 2:22 AM, Peter Jeremy wrote: > > On 2020-Feb-12 15:23:51 -0500, mike tancsa <mike@sentex=2Enet> wrote: > >> Not sure about the older Athlon CPUs, but the 2 generations of Ryzen's= I > >> have seem correct as well as an APU > >> > >> CPU: AMD GX-412TC > > SOC=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2= =A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0=C2=A0 (998=2E17-MHz > > K8-class CPU) > > OTOH, I'm not confident about temperatures on my APU=2E The publicly > > > >> And on a fanless APU > >> > >> # sysctl -a dev=2Ecpu=2E0=2Etemperature > >> dev=2Ecpu=2E0=2Etemperature: 62=2E6C > >> > >> # sysctl -a dev=2Eamdtemp=2E0=2Ecore0=2Esensor0 > >> dev=2Eamdtemp=2E0=2Ecore0=2Esensor0: 63=2E1C > > At what ambient temperature? I see a similar value from my (idle) APU3 > > but don't believe the (implied) ~35K junction-to-ambient difference=2E >=20 > Actually, it does seem a bit high=2E This is read from a PCEngines APU3=2E= =C2=A0 > Since the CPU dissipates heat off the bottom metal case, I cant point my > thermal laser temp reader directly at the CPU=2E Reading the temp off the > top of the mother board with the top of the case off, I cant find any > spots hotter than 35C=2E=2E=2E So 62C is probably a lot higher than it > actually is=2E My BIOS appears to have the correct temp reading=2E Would it be of any use to anyone besides myself, if I were to decompile it, and get the source for the temp reading/monitoring from it? --Chris >=20 > =C2=A0=C2=A0=C2=A0 ---Mike >=20 >=20 > _______________________________________________ > freebsd-current@freebsd=2Eorg mailing list > https://lists=2Efreebsd=2Eorg/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd=2Eorg= "
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